Recent content by RFreund

That's a fair point, but my 'bamboozlement' is that the pressure on the tanker truck is the same whether that tall metal straw is 1 inch in diameter or 100 feet in diameter. If we imagine the straw as rectangular (not necessary, but helpful for the transition), I do understand the "force" on...

Thanks for the replies. A great video suggestion by erobz and I kinda like the "lever" comparison by Hutchphd. A few comments on pressure vs force. This seems to be side tracking my question a little bit. Force is simply pressure times an area. When I think about pressure problems, I like to...

Thanks for the reply. I guess my "issue" with it, is just, how can something with such little weight generate such a large force. I suppose you could liken it to air pressure, but in that case, something is "forcing" air into a container. In the hydrostatic pressure case, there is only gravity...

I understand that pressure increases with depth regardless of the shape of the container. However, this doesn't sit well with me. Imagine a container: 8' tall x 1" wide x 1' long. The pressure at the bottom of the container is 8' x 62.4 pcf = 499.2psf. However, the weight of the water in the...

What is the plate attached to? AISC give some guidance on welding plates to walls of HSS (hollow structural steel). Also Blodget's Design of Welded Structures also covers this.